Hi Guys!
I try to describe my the really complex issue in the easiest word I can, anyway since I'm a bad English writer please ask me to re describe again if it is not comprensible.
My laptop 840 G1 has 2 graphic card: Intel HD + AMD Radeon
My laptop 840 G1 is connected to the HP SlimDockingStation
My final desire is to connect 3 external monitor but I'm facing strange issues even with only two.
Both External Monitors are HP EliteDisplay E231.
I tried to connect them in all the following configuration:
- to the 2 Display port on the Docking backside
- one DisplayPort on the Docking and one DisplayPort on the laptop
- one DisplayPort on the Docking and one VGA on The Docking
- one DisplayPort on the laptop and one VGA on The Docking
- one DisplayPort on the Docking and one VGA on The laptop
- one DisplayPort on the laptop and one VGA on The laptop
In any of those configuration, sometimes (even for seveal days) both monitor are well supported, sometimes the Intel HD Grafic card crash (once crashed i need to uninstall sw drivers, reboot, ang install it again).
with Intel graphic card crash I mean in the Device manager I find a orang warning triagle close to the device and in the property there is this statement: "Windows has stopped this device because it has reported problems. (Code 43)".
When it happens is no more possible swith from DockingStation, If I want to go ina a meeting roome I need to shutdown, disconnect from Docking and turn it on again :-)
I changed Docking station, but problems occured again.
I freshly formatted my laptop three times in January in order to test it with many different configurations.
I tried to stay up to date with the driver dispatched by HP for both the graphic cards, no result.
I tried to update the AMD drivers via AMD site, it worked but with no result.
I tried to update the Intel drivers (to do this move I needed to uninstall all the previously installed HP-Intel drivers) again, no result.
I'm struggling in a fight, it seems there an hw failure but I'm not able to locate it, could you help me find the evidence (in case it exists) that something is not working at HW level so I can ask my HelpDesk office to open the support Application with our dealer? ....'cause they are saying me that 2 external monitor is something evil :-) completely not supported by our helpDesk office, amyway I have a coleague of mine with the same configuration (2 external monitor) working!
Thanks in advance,
Monducci Marco